CN108660919B - Heavy double-beam modular bridge expansion device - Google Patents
Heavy double-beam modular bridge expansion device Download PDFInfo
- Publication number
- CN108660919B CN108660919B CN201810731423.9A CN201810731423A CN108660919B CN 108660919 B CN108660919 B CN 108660919B CN 201810731423 A CN201810731423 A CN 201810731423A CN 108660919 B CN108660919 B CN 108660919B
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- bearing
- support
- displacement box
- displacement
- middle longitudinal
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
- E01D19/062—Joints having intermediate beams
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a heavy double-beam modular bridge expansion device, wherein supporting beams are arranged in a first displacement box and a second displacement box, the bearing of the expansion device is safer and more reliable due to a double-beam structure, a bearing support and a compression support are respectively arranged at the top and the bottom of the supporting beams, in addition, the bearing support and the compression support in the first displacement box are staggered with the bearing support and the compression support in the second displacement box, enough structural space is provided for the bearing support and the compression support, the bearing surface area of the bearing support can be increased according to the heavy load requirement, and the capability of the bridge expansion device for bearing heavy load is improved.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a heavy double-beam modular bridge expansion device.
Background
In order to meet the requirement of bridge deck deformation, bridge expansion joints are usually arranged between two beam ends, between a beam end and a bridge abutment or at the hinge joint position of a bridge, and the expansion joints are required to freely expand and contract in two directions parallel to and perpendicular to the axis of the bridge, so that the bridge expansion joints are firm and reliable, and the vehicle is smooth and free from sudden jump and noise when running; can prevent rainwater and garbage soil from penetrating and blocking; the installation, inspection, maintenance and dirt elimination are all simple and convenient. The rail is disconnected from the bridge deck pavement at the expansion joint, the bridge expansion joint is used for adjusting the displacement and the connection between the upper structures caused by the vehicle load and the bridge building materials, and the bridge expansion joint is required to be provided with a bridge expansion device.
The expansion device is an important component of the bridge, and the performance of the expansion device directly influences the reliability of the expansion performance of the bridge and the safety of vehicle operation. Once the telescopic device is damaged, safety accidents are easy to generate, and traffic is interrupted; secondly, the dirt falling along the seam causes corrosion of the lower structure of the bridge. Heavy vehicles have a great impact on the life of the telescopic device, and the number of damage to the modular telescopic device caused by heavy loading is also great each year. The bearing parts of the modular bridge expansion device mainly comprise a middle longitudinal beam, a supporting cross beam and a bearing support, the design size of the middle longitudinal beam and the supporting cross beam and the interval arrangement of the supporting cross beam are mainly designed according to the national standard load value, however, the traffic in China has the characteristics of heavy load, high speed and large traffic flow, the external force generated by the factors can directly increase the instant impact force on the expansion device, and the bridge expansion device is in a fatigue state for a long time, so that the middle longitudinal beam and the supporting cross beam are broken. In the existing modular expansion device, the pressure bearing support is limited by the structural space, so that the area of the pressure bearing surface is small, the pressure bearing support is a weak link in a stress part of the modular expansion device, and the pressure bearing support cannot adapt to frequent impact of a heavy vehicle and is easy to damage.
Therefore, how to change the phenomenon that the modular bridge expansion device in the prior art has poor heavy load bearing capability and is easy to damage is a problem to be solved by the technicians in the field.
Disclosure of Invention
The invention aims to provide a heavy double-beam modular bridge expansion device, which solves the problems in the prior art, improves the bearing capacity of the modular bridge expansion device and prolongs the service life of the expansion device.
In order to achieve the above object, the present invention provides the following solutions: the invention provides a heavy double-beam modular bridge expansion device, which comprises:
the double-beam bearing system comprises a plurality of bearing units, wherein middle longitudinal beams arranged side by side penetrate through the plurality of bearing units, gaps are formed between the adjacent middle longitudinal beams, rubber sealing belts are arranged between the adjacent middle longitudinal beams, each bearing unit comprises a first displacement box and a second displacement box, supporting cross beams are arranged in the first displacement box and the second displacement box, a bearing support and a pressing support are correspondingly arranged at the top and the bottom of each supporting cross beam respectively, the bearing support in the first displacement box, the pressing support and the bearing support in the second displacement box are arranged in a staggered manner, the bearing support is connected with the middle longitudinal beams, side longitudinal beams are arranged at two sides of the middle longitudinal beams, and the side longitudinal beams are respectively connected with the first displacement box and the second displacement box;
the displacement control system is arranged between the first displacement box and the second displacement box, and is connected with the middle longitudinal beam and the side longitudinal beam, and the displacement control system can enable gaps among the middle longitudinal beams and gaps among the middle longitudinal beam and the side longitudinal beams to be uniform;
and one end of the anchoring system is connected with the side longitudinal beam, and the other end of the anchoring system can be connected with embedded bars of the bridge.
Preferably, the pressure bearing support is arranged between the bearing cross beam and the middle longitudinal beam.
Preferably, a steel lining plate is arranged between the pressure bearing support and the middle longitudinal beam.
Preferably, the pressure bearing support and the compression support are arranged at intervals on the supporting beam.
Preferably, the double beam load bearing system further comprises a hanger structure by which the center sill is secured to the support cross member.
Preferably, the first displacement box and the second displacement box all include two half boxes that the symmetry set up, half box is the U type, two the opening of half box sets up relatively, the both ends of supporting beam stretch into two respectively the inside of half box, set up in the half box the pressure-bearing support with compress tightly the support, half box pass through the pressure-bearing support with compress tightly the support with the limit longeron with the supporting beam links to each other.
Preferably, the rubber sealing band is arranged between the side longitudinal beam and the middle longitudinal beam.
Preferably, the displacement control system comprises a steel hinge structure connected with the middle longitudinal beam and the side longitudinal beam respectively.
Compared with the prior art, the invention has the following technical effects: the invention relates to a heavy double-beam modular bridge expansion device, which comprises a double-beam bearing system, wherein the double-beam bearing system comprises a plurality of bearing units, middle longitudinal beams arranged side by side penetrate through the plurality of bearing units, gaps are reserved between the adjacent middle longitudinal beams, rubber sealing belts are arranged between the adjacent middle longitudinal beams, each bearing unit comprises a first displacement box and a second displacement box, supporting cross beams are arranged in the first displacement box and the second displacement box, a bearing support and a compression support are respectively and correspondingly arranged at the top and the bottom of the bearing cross beam, the bearing support and the compression support in the first displacement box are staggered with the bearing support and the compression support in the second displacement box, the bearing support is connected with the middle longitudinal beams, side longitudinal beams are arranged at two sides of the middle longitudinal beams, and the side longitudinal beams are respectively connected with the first displacement box and the second displacement box. The bearing cross beams are arranged in the first displacement box and the second displacement box, the bearing of the telescopic device is safer and more reliable due to the double-beam structure, the bearing support and the compression support are arranged on two sides of the bearing cross beams respectively, in addition, the bearing support and the compression support in the first displacement box are staggered with the bearing support and the compression support in the second displacement box, enough structural space is provided for the bearing support and the compression support, the bearing surface area of the bearing support can be increased according to the heavy load requirement, and the capability of the bridge telescopic device for bearing the heavy load is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a heavy double beam modular bridge telescoping device of the present invention;
FIG. 2 is a schematic view of the cross-sectional structure taken along the direction A-A in FIG. 1;
FIG. 3 is a schematic view of the cross-sectional structure along the direction B-B in FIG. 1;
FIG. 4 is a schematic view of the cross-sectional structure of FIG. 1 taken along the direction C-C;
FIG. 5 is a schematic view of the cross-sectional structure of FIG. 3 taken along the direction D-D;
wherein, 1 is double-beam bearing system, 2 is displacement control system, 3 is the anchor system, 4 is the side rail, 5 is the well longeron, 6 is the rubber seal area, 7 is the gallows structure, 8 is first displacement case, 9 is the second displacement case, 10 is the supporting beam, 11 is the pressure-bearing support, 12 is the compaction support, 13 is the steel lining board.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a heavy double-beam modular bridge expansion device, which solves the problems in the prior art, improves the bearing capacity of the modular bridge expansion device and prolongs the service life of the expansion device.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1-5, fig. 1 is a schematic structural diagram of a heavy-duty dual-beam modular bridge expansion device according to the present invention, fig. 2 is a schematic sectional structural diagram along A-A in fig. 1, fig. 3 is a schematic sectional structural diagram along B-B in fig. 1, fig. 4 is a schematic sectional structural diagram along C-C in fig. 1, and fig. 5 is a schematic sectional structural diagram along D-D in fig. 3.
The invention provides a heavy double-beam modular bridge expansion device, which comprises:
the double-beam bearing system 1 comprises a plurality of bearing units, wherein middle longitudinal beams 5 arranged side by side penetrate through the plurality of bearing units, gaps are reserved between the adjacent middle longitudinal beams 5, rubber sealing belts 6 are arranged on the adjacent middle longitudinal beams 5, each bearing unit comprises a first displacement box 8 and a second displacement box 9, supporting cross beams 10 are respectively arranged in the first displacement box 8 and the second displacement box 9, a bearing support 11 and a pressing support 12 are respectively and correspondingly arranged at the top and the bottom of each supporting cross beam 10, the bearing supports 11 and the pressing supports 12 in the first displacement box 8 are staggered with the bearing supports 11 and the pressing supports 12 in the second displacement box 9, the bearing supports 11 are connected with the middle longitudinal beams 5, side longitudinal beams 4 are arranged on two sides of the middle longitudinal beams 5, and the side longitudinal beams 4 are respectively connected with the first displacement box 8 and the second displacement box 9.
The bearing cross beams 10 are arranged in the first displacement box 8 and the second displacement box 9, the bearing of the telescopic device is safer and more reliable due to the double-beam structure, the bearing support 11 and the compression support 12 are respectively arranged at the top and the bottom of the bearing cross beams 10, in addition, the bearing support 11 and the compression support 12 in the first displacement box 8 are staggered with the bearing support 11 and the compression support 12 in the second displacement box 9, enough structural space is provided for the bearing support 11 and the compression support 12, the bearing surface area of the bearing support 11 can be increased according to heavy load requirements, and the capability of the bridge telescopic device for bearing heavy load is improved.
The displacement control system 2 is arranged between the first displacement box 8 and the second displacement box 9, the displacement control system 2 is connected with the middle longitudinal beam 5 and the side longitudinal beam 4, and the displacement control system 2 can enable gaps among the middle longitudinal beams 5 and between the middle longitudinal beam 5 and the side longitudinal beam 4 to be uniform; the displacement control system 2 is arranged between the first displacement box 8 and the second displacement box 9, so that gaps between the middle longitudinal beams 5 and the side longitudinal beams 4 are more uniform, and the uniformity of displacement control is improved.
And one end of the anchoring system 3 is connected with the side longitudinal beam 4, and the other end of the anchoring system 3 can be connected with embedded bars of the bridge.
Specifically, the pressure bearing support 11 is disposed between the support cross member 10 and the center sill 5, enhancing the pressure bearing capability of the center sill 5.
Wherein, set up steel lining board 13 between pressure-bearing support 11 and the well longeron 5, strengthen the whole heavy load capacity of telescoping device.
More specifically, the pressure bearing support 11 and the compression support 12 are spaced apart on the support beam 10, providing sufficient structural space for the pressure bearing support 11 and the compression support 12.
Further, the double-beam bearing system 1 further comprises a hanger structure 7, and the middle longitudinal beam 5 is fixed on the supporting cross beam 10 through the hanger structure 7, so that the integrity of the telescopic device is improved.
In addition, the first displacement box 8 and the second displacement box 9 each include two symmetrical half boxes, the half boxes are all U-shaped, the openings of the two half boxes are arranged oppositely, two ends of the supporting beam 10 extend into the two half boxes respectively, the half boxes are further provided with a bearing support 11 and a compression support 12, referring to fig. 2 specifically, the bearing support 11 arranged at the top of the supporting beam 10 is connected with the middle longitudinal beam 5, the compression support 12 arranged at the top of the supporting beam 10 is connected with the side longitudinal beam 4, and the arrangement of the bearing support 11 and the compression support 12 depends on the transmission direction of pressure, so that the bearing safety of the telescopic device is improved.
Further, set up rubber sealing strip 6 between longeron 4 and the well longeron 5, rubber sealing strip 6 is flexible, can guarantee telescoping device normal displacement, ensures the leakproofness simultaneously, avoids debris such as rainwater to get into the damage bridge by the gap between well longeron 5, the longeron 4.
The displacement control system 2 comprises a steel hinge structure, wherein the steel hinge is respectively connected with the middle longitudinal beam 5 and the side longitudinal beam 4, so that expansion joints can stretch in two directions parallel and perpendicular to the axis of a bridge, and meanwhile, the uniform gap is ensured.
Each bearing unit of the double-beam bearing system 1 comprises a first displacement box 8 and a second displacement box 9, each displacement box comprises a supporting cross beam 10, a plurality of bearing supports 11 and a pressing support 12, the bearing supports 11 and the pressing supports 12 are arranged at intervals, a displacement control system 2 is arranged between a side girder 4 and a middle girder 5 between the two displacement boxes of the same double-beam bearing system 1, the structural design ensures that the double-beam structure bearing is safer and more reliable, the displacement control system 2 is arranged between the two displacement boxes of the same double-beam bearing system 1, the displacement control state is better, and the gaps among various types of steel are more uniform. Secondly, a compression support 12 and a pressure support 11 are respectively arranged above and below a supporting beam 10 in the first displacement box 8 and the second displacement box 9; the first displacement box 8 and the second displacement box 9 are fixedly connected with the side longitudinal beam 4; the bearing support 11 and the compression support 12 are matched for use, the upper surface and the lower surface of the two bearing cross beams 10 of each bearing unit are staggered, and the structure provides enough structural space for the bearing support 11 and the compression support 12, so that the bearing surface area of the bearing support 11 can be increased according to heavy load requirements.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (6)
1. A heavy double-beam modular bridge telescoping device, comprising:
the double-beam bearing system comprises a plurality of bearing units, wherein middle longitudinal beams arranged side by side penetrate through the plurality of bearing units, gaps are formed between the adjacent middle longitudinal beams, rubber sealing belts are arranged between the adjacent middle longitudinal beams, each bearing unit comprises a first displacement box and a second displacement box, supporting cross beams are arranged in the first displacement box and the second displacement box, a bearing support and a pressing support are correspondingly arranged at the top and the bottom of each supporting cross beam respectively, the bearing support in the first displacement box, the pressing support and the bearing support in the second displacement box are arranged in a staggered manner, the bearing support is connected with the middle longitudinal beams, side longitudinal beams are arranged at two sides of the middle longitudinal beams, and the side longitudinal beams are respectively connected with the first displacement box and the second displacement box; the first displacement box and the second displacement box comprise two half boxes which are symmetrically arranged, the half boxes are U-shaped, openings of the two half boxes are oppositely arranged, two ends of the supporting cross beam respectively extend into the two half boxes, the pressure bearing support and the compression support are arranged in the half boxes, and the half boxes are connected with the side longitudinal beams and the supporting cross beams through the pressure bearing support and the compression support; the bearing support and the compression support are arranged at intervals in the area where the supporting beam is positioned between the two half boxes;
the displacement control system is arranged between the first displacement box and the second displacement box, and is connected with the middle longitudinal beam and the side longitudinal beam, and the displacement control system can enable gaps among the middle longitudinal beams and gaps among the middle longitudinal beam and the side longitudinal beams to be uniform;
and one end of the anchoring system is connected with the side longitudinal beam, and the other end of the anchoring system can be connected with embedded bars of the bridge.
2. The heavy double beam modular bridge telescoping device of claim 1, wherein: the pressure bearing support is arranged between the supporting cross beam and the middle longitudinal beam.
3. The heavy double beam modular bridge telescoping device of claim 2, wherein: and a steel lining plate is arranged between the pressure bearing support and the middle longitudinal beam.
4. The heavy double beam modular bridge telescoping device of claim 1, wherein: the double-beam load bearing system further comprises a hanger structure, and the middle longitudinal beam is fixed on the supporting cross beam through the hanger structure.
5. The heavy double beam modular bridge telescoping device of claim 1, wherein: the rubber sealing band is arranged between the side longitudinal beam and the middle longitudinal beam.
6. The heavy double beam modular bridge telescoping device of claim 1, wherein: the displacement control system comprises a steel hinge structure which is respectively connected with the middle longitudinal beam and the side longitudinal beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810731423.9A CN108660919B (en) | 2018-07-05 | 2018-07-05 | Heavy double-beam modular bridge expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810731423.9A CN108660919B (en) | 2018-07-05 | 2018-07-05 | Heavy double-beam modular bridge expansion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108660919A CN108660919A (en) | 2018-10-16 |
| CN108660919B true CN108660919B (en) | 2023-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810731423.9A Active CN108660919B (en) | 2018-07-05 | 2018-07-05 | Heavy double-beam modular bridge expansion device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004183379A (en) * | 2002-12-05 | 2004-07-02 | Kawaguchi Metal Industries Co Ltd | Vibration control structure of expansion device for bridge |
| CN102518037A (en) * | 2011-12-16 | 2012-06-27 | 成都市新筑路桥机械股份有限公司 | Expansion device for extra-large displacement bridge |
| CN202430628U (en) * | 2011-12-16 | 2012-09-12 | 成都市新筑路桥机械股份有限公司 | Ultra-large displacement bridge telescopic device |
| DE102015115505A1 (en) * | 2014-09-16 | 2016-03-17 | Zujiang Liu | Bridge expansion joint and attachment method for it |
| CN205839580U (en) * | 2016-06-13 | 2016-12-28 | 同济大学 | Uniformly displacement drag-line modulus expansion joint |
| CN106320169A (en) * | 2016-08-25 | 2017-01-11 | 中铁第四勘察设计院集团有限公司 | Modular expansion device and bridge |
| CN208362900U (en) * | 2018-07-05 | 2019-01-11 | 衡水中铁建工程橡胶有限责任公司 | A kind of heavy type twin beams modulus bridge expansion device |
-
2018
- 2018-07-05 CN CN201810731423.9A patent/CN108660919B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004183379A (en) * | 2002-12-05 | 2004-07-02 | Kawaguchi Metal Industries Co Ltd | Vibration control structure of expansion device for bridge |
| CN102518037A (en) * | 2011-12-16 | 2012-06-27 | 成都市新筑路桥机械股份有限公司 | Expansion device for extra-large displacement bridge |
| CN202430628U (en) * | 2011-12-16 | 2012-09-12 | 成都市新筑路桥机械股份有限公司 | Ultra-large displacement bridge telescopic device |
| DE102015115505A1 (en) * | 2014-09-16 | 2016-03-17 | Zujiang Liu | Bridge expansion joint and attachment method for it |
| CN205839580U (en) * | 2016-06-13 | 2016-12-28 | 同济大学 | Uniformly displacement drag-line modulus expansion joint |
| CN106320169A (en) * | 2016-08-25 | 2017-01-11 | 中铁第四勘察设计院集团有限公司 | Modular expansion device and bridge |
| CN208362900U (en) * | 2018-07-05 | 2019-01-11 | 衡水中铁建工程橡胶有限责任公司 | A kind of heavy type twin beams modulus bridge expansion device |
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| CN108660919A (en) | 2018-10-16 |
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Address after: 053000 Hengshui city of Hebei Province North Taocheng District industrial base rubber road No. 1 Applicant after: Zhongyu Tiexin Transportation Technology Co.,Ltd. Applicant after: HEBEI TONGCHUANG TRAFFIC ENGINEERING MATCHING PRODUCT INDUSTRY TECHNOLOGY Co.,Ltd. Address before: 053000 Hengshui city of Hebei Province North Taocheng District industrial base rubber road No. 1 Applicant before: HENGSHUI ZHONGTIEJIAN ENGNIEERING RUBBER Co.,Ltd. Applicant before: HEBEI TONGCHUANG TRAFFIC ENGINEERING MATCHING PRODUCT INDUSTRY TECHNOLOGY Co.,Ltd. |
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